Scroll to see break-even price per barrel for oil in 2015 for select oil producers, and click on a country's name for more details. modest oil-price recovery and currency devaluations have lowered breakeven prices for countries like Russia and Nigeria, but some petrostates still need oil prices above $100 a barrel to balance their budgets.
There are dozens of types of gemstones â including diamonds, colored gemstones, and pearls â each with a unique set of physical and optical properties. GIRDLE â The narrow band around the perimeter of a polished or faceted diamond or colored gemstone.
Quarter Carat (1/4 Carat, 0.25 Carat) = 25 points. Melee â Tiny stones used in pave or channel settings. Usually weigh 0.15 carats (15 points) or less, and are either grouped together or used to augment a larger stone.Carat weight, combined with girdle diameter (the girdle is the outermost edge of a cut diamond), expresses the exact size of a diamond.arats are also the measure of weight for most gems, with one Carat equaling approximately 200 milligrams (0.2 grams). There are 142 carats to an ounce. Carats are further divided into points, with one Carat equaling 100 âpoints.â.